The means-tested homestead exemption starts with persons who turn 65 in 2014. The means homestead exemption will start with real property tax bills payable in 2015. For real property, bills paid in the current year cover the previous tax year. So, for example, bills paid in 2014 cover the 2013 tax year, and so on for subsequent years. For manufactured or mobile homes, bills paid in in the current year cover the current year, so bills paid in 2014 cover the 2014 tax year, and so on for subsequent years.